NASA Commercial Crew Flights Slip Slide Toward 2019

Astronauts Bob Behnken and Eric Boe evaluate Crew Dragon controls. (Credit: NASA)

Crucial flight tests for NASA’s two commercial crew vehicles are slipping ever closer to 2019. The space agency released the following updated schedules for Boeing’s CST-100 and SpaceX’s Dragon 2 vehicles today:

Targeted Test Flight Dates

Boeing Orbital Flight Test (uncrewed): August 2018
Boeing Crew Flight Test (crewed): November 2018
SpaceX Demonstration Mission 1 (uncrewed): August 2018
SpaceX Demonstration Mission 2 (crewed): December 2018

Boeing’s schedule has not changed from the previous update. SpaceX’s demonstration flights have slipped from April and August to August and December, respectively. No reasons have been given for the slips.

A reliable source tells Parabolic Arc that SpaceX experienced a delay several months ago due to issues with Dragon 2’s environmental control and life support system (ECLSS). The problem was estimated to delay the first demonstration flight about six months. At about that same time, the schedule for that first uncrewed flight slipped from February to April.

A SpaceX spokeswoman would not comment for the record on this report.